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diff --git a/WebCore/dom/RawDataDocumentParser.h b/WebCore/dom/RawDataDocumentParser.h
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+/*
+ * Copyright (C) 2010 Google, Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef RawDataDocumentParser_h
+#define RawDataDocumentParser_h
+
+#include "DocumentParser.h"
+
+namespace WebCore {
+
+// FIXME: It seems wrong that RawDataDocumentParser is a subclass of
+// DocumentParser.  RawDataDocumentParser, just wants to override an earlier
+// version of write() before the data is decoded.  Seems the decoding could
+// move into the base-class DocumentParser, and then RawDataDocumentParser
+// would just be short-circuting.  That could simplify some of the
+// DocumentWriter logic.
+class RawDataDocumentParser : public DocumentParser {
+public:
+    RawDataDocumentParser(Document* document)
+        : DocumentParser(document)
+    {
+    }
+
+protected:
+    virtual void finish()
+    {
+        if (!m_parserStopped)
+            m_document->finishedParsing();
+    }
+
+private:
+    virtual void write(const SegmentedString&, bool)
+    {
+        // <https://bugs.webkit.org/show_bug.cgi?id=25397>: JS code can always call document.write, we need to handle it.
+        ASSERT_NOT_REACHED();
+    }
+
+    virtual bool finishWasCalled()
+    {
+        // finish() always calls document()->finishedParsing() so we will be
+        // deleted after finish().
+        return false;
+    }
+
+    virtual bool isWaitingForScripts() const { return false; }
+
+    virtual bool wantsRawData() const { return true; }
+    virtual bool writeRawData(const char*, int) { return false; }
+};
+
+};
+
+#endif // RawDataDocumentParser_h